Locking flip-up telescopic lens assembly

Abstract

An optical spectacle device comprising a spectacle frame having a pair of optical lenses. The spectacle device further includes a telescopic lens assembly pivotally attached to the spectacle frame which is pivotable between an operative position and a non-operative position. The spectacle device also includes an indexing mechanism for repeatedly orienting the telescopic lens assembly into the operative position from the non-operative position. A support frame for holding the telescopes of the telescopic lens assembly is adapted to be substantially out of a user's forward line of sight when the telescopic lens assembly is in the operative position.

I claim: 
     
       1. An optical spectacle device comprising: a spectacle frame having a pair of optical lenses;   a telescope lens assembly pivotally attached to said spectacle frame, said telescope lens assembly being pivotable between a predetermined operative position and a predetermined non-operative position; and   indexing means for repeatedly and automatically locking said telescoping lens assembly in said predetermined operative position and said predetermined non-operative position.   
     
     
       2. The optical spectacle device of claim 1, wherein said telescopic lens assembly includes at least one telescope and support means for holding said at least one telescope. 
     
     
       3. The optical spectacle device of claim 2, wherein said at least one telescope comprises a pair of telescopes. 
     
     
       4. The optical spectacle device of claim 2, wherein said support means is substantially out of a user's forward line of sight when said telescopic lens assembly is in said operative position. 
     
     
       5. The optical spectacle device of claim 4, wherein said pivotal attachment of said telescopic lens assembly to said spectacle frame includes said support means pivotally attached to hinge means mounted on said spectacle frame. 
     
     
       6. The optical spectacle device of claim 5, wherein said indexing means is associated with said hinge means. 
     
     
       7. The optical spectacle device of claim 1, wherein at least one of said pair of optical lenses comprises a corrective optical lens. 
     
     
       8. An optical spectacle device comprising: a spectacle frame having a pair of optical lenses;   a telescope lens assembly having at least one telescope, pivotally attached to said spectacle frame, said telescope lens assembly being repeatable pivotable between a predetermined non-operative position and a predetermined operative position without refocusing of said at least one telescope;   support means for holding said at least one telescope, said support means being substantially out of a user's forward line of sight when said telescope lens assembly is in said operative position, said support means being pivotally attached to hinge means mounted on said spectacle frame;   indexing means associated with said hinge means, said indexing means operating to repeatedly and automatically lock said telescope lens assembly in said predetermined operative position and said predetermined non-operative position.   
     
     
       9. The optical spectacle device of claim 8, wherein said at least one telescope comprises a pair of telescopes. 
     
     
       10. The optical spectacle device of claim 8, wherein said pivotal attachment of said telescopic lens assembly to said spectacle frame includes said support means pivotally attached to hinge means mounted on said spectacle frame. 
     
     
       11. The optical spectacle device of claim 8, wherein at least one of said pair of optical lenses comprises a corrective optical lens. 
     
     
       12. A telescope lens assembly for an optical spectacle device, comprising: hinge means for pivotally mounting said telescope lens assembly to the optical spectacle device;   support means for holding at least one telescope, said support means being pivotally attached to said hinge means wherein said support means is capable of pivoting between a predetermined operative position and a predetermined non-operative position; and   indexing means associated with said hinge means for repeatedly and automatically locking said telescope lens assembly in said predetermined operative position and said predetermined non-operative position.   
     
     
       13. The telescopic lens assembly according to claim 12, wherein said hinge means includes hinge housing means. 
     
     
       14. The telescopic lenses assembly according to claim 13, wherein said hinge means further includes rotating means disposed with in said housing, said rotating means being coupled to said support means. 
     
     
       15. The telescopic lens assembly according to claim 14, wherein said indexing means is associated with said rotating means. 
     
     
       16. The telescopic lens assembly according to claim 12, wherein said support means comprises a Y-shaped support frame. 
     
     
       17. The telescopic lens assembly according to claim 12, wherein said at least one telescope comprises a pair of telescopes. 
     
     
       18. The telescopic lens assembly according to claim 12, wherein said at least one telescope comprises a Galilean telescope.